ammonites
Oligaeschna ashutasica Martynov 1929 (darner dragonfly)

Insecta - Odonata - Aeshnidae

Alternative combinations: Basiaeschna ashutasica, Oplonaeschna ashutasica

Full reference: A. V. Martynov. 1929. Ob Iekopaemyx Tretiyx Otlozzenij Ashutaea Zajeanekogo Ueada [Fossil insects from Tertiary deposits in Ashutas, Saisan District]. Trudy Geologicheskogo Muzeya, Akademii Nauk SSSR 5:173-216

Belongs to Oligaeschna according to A. Nel et al. 1994

Sister taxa: Oligaeschna jungi, Oligaeschna kvaceki, Oligaeschna lapidaria, Oligaeschna palaeocoerulea, Oligaeschna saurai, Oligaeschna separata

Type specimen: PIN 2113/12, a hindwing. Its type locality is Mount Ashutas at the river Irtysh, which is in an Oligocene terrestrial claystone in Kazakstan.

Ecology: fast-moving volant carnivore-insectivore

Average measurements (in mm): hindwing length 48.0